internal clock
noun
1
: a system in the body that controls when a person needs to sleep, eat, etc.
The long trip upset my internal clock and I had a hard time getting to sleep.
2
: a clock or timing device that is inside a computer
Examples of internal clock in a Sentence
Recent Examples on the Web
Your body’s internal clock is more sensitive to timing consistency than to total hours. —
Allison Palmer, Fort Worth Star-Telegram, 17 Apr. 2026 Even one or two late nights can throw your body’s internal clock off for days. —Allison Palmer, Charlotte Observer, 16 Apr. 2026 Light helps control your body’s internal clock, also called your circadian rhythm. —Julie Scott, Verywell Health, 7 Apr. 2026 While the tried-and-true rules of sleep hygiene are generally applicable to everyone, the specifics of what will improve one person’s sleep are quite individual and dictated by a person’s internal clock. —Helen Carefoot, Flow Space, 12 Mar. 2026 See All Example Sentences for internal clock
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Allison Palmer, Fort Worth Star-Telegram, 17 Apr. 2026 Even one or two late nights can throw your body’s internal clock off for days. —Allison Palmer, Charlotte Observer, 16 Apr. 2026 Light helps control your body’s internal clock, also called your circadian rhythm. —Julie Scott, Verywell Health, 7 Apr. 2026 While the tried-and-true rules of sleep hygiene are generally applicable to everyone, the specifics of what will improve one person’s sleep are quite individual and dictated by a person’s internal clock. —Helen Carefoot, Flow Space, 12 Mar. 2026 See All Example Sentences for internal clock
Cite this Entry
“Internal clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/internal%20clock. Accessed 25 Apr. 2026.
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